Mercurial > hg
annotate hgext/convert/cvs.py @ 51535:03247e37ccf7
branchcache: move the processing of the new data in a dedicated method
In a future changeset, this will allow the V3 of the branch cache to use a fast
path when possible.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 06 Mar 2024 16:18:03 +0100 |
parents | 18c8c18993f0 |
children | 1eab9e40c0c8 |
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1 # cvs.py: CVS conversion code inspired by hg-cvs-import and git-cvsimport |
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2 # |
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3 # Copyright 2005-2009 Olivia Mackall <olivia@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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7 |
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8 import errno |
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9 import os |
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10 import re |
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11 import socket |
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12 |
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13 from mercurial.i18n import _ |
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14 from mercurial.pycompat import ( |
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15 open, |
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16 ) |
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17 from mercurial import ( |
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18 encoding, |
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19 error, |
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20 util, |
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21 ) |
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22 from mercurial.utils import ( |
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23 dateutil, |
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24 procutil, |
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25 ) |
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26 |
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27 from . import ( |
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28 common, |
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29 cvsps, |
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30 ) |
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31 |
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32 stringio = util.stringio |
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33 checktool = common.checktool |
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34 commit = common.commit |
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35 converter_source = common.converter_source |
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36 makedatetimestamp = common.makedatetimestamp |
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37 NoRepo = common.NoRepo |
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38 |
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39 |
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40 class convert_cvs(converter_source): |
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41 def __init__(self, ui, repotype, path, revs=None): |
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42 super(convert_cvs, self).__init__(ui, repotype, path, revs=revs) |
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43 |
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44 cvs = os.path.join(path, b"CVS") |
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45 if not os.path.exists(cvs): |
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46 raise NoRepo(_(b"%s does not look like a CVS checkout") % path) |
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47 |
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48 checktool(b'cvs') |
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49 |
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50 self.changeset = None |
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51 self.files = {} |
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52 self.tags = {} |
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53 self.lastbranch = {} |
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54 self.socket = None |
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55 self.cvsroot = open(os.path.join(cvs, b"Root"), b'rb').read()[:-1] |
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56 self.cvsrepo = open(os.path.join(cvs, b"Repository"), b'rb').read()[:-1] |
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57 self.encoding = encoding.encoding |
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58 |
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59 self._connect() |
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60 |
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61 def _parse(self): |
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62 if self.changeset is not None: |
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63 return |
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64 self.changeset = {} |
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65 |
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66 maxrev = 0 |
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67 if self.revs: |
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68 if len(self.revs) > 1: |
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69 raise error.Abort( |
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70 _( |
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71 b'cvs source does not support specifying ' |
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72 b'multiple revs' |
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73 ) |
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74 ) |
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75 # TODO: handle tags |
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76 try: |
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77 # patchset number? |
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78 maxrev = int(self.revs[0]) |
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79 except ValueError: |
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80 raise error.Abort( |
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81 _(b'revision %s is not a patchset number') % self.revs[0] |
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82 ) |
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83 |
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84 d = encoding.getcwd() |
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85 try: |
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86 os.chdir(self.path) |
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87 |
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88 cache = b'update' |
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89 if not self.ui.configbool(b'convert', b'cvsps.cache'): |
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90 cache = None |
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91 db = cvsps.createlog(self.ui, cache=cache) |
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92 db = cvsps.createchangeset( |
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93 self.ui, |
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94 db, |
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95 fuzz=int(self.ui.config(b'convert', b'cvsps.fuzz')), |
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96 mergeto=self.ui.config(b'convert', b'cvsps.mergeto'), |
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97 mergefrom=self.ui.config(b'convert', b'cvsps.mergefrom'), |
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98 ) |
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99 |
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100 for cs in db: |
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101 if maxrev and cs.id > maxrev: |
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102 break |
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103 id = b"%d" % cs.id |
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104 cs.author = self.recode(cs.author) |
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105 self.lastbranch[cs.branch] = id |
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106 cs.comment = self.recode(cs.comment) |
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107 if self.ui.configbool(b'convert', b'localtimezone'): |
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108 cs.date = makedatetimestamp(cs.date[0]) |
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109 date = dateutil.datestr(cs.date, b'%Y-%m-%d %H:%M:%S %1%2') |
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110 self.tags.update(dict.fromkeys(cs.tags, id)) |
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111 |
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112 files = {} |
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113 for f in cs.entries: |
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114 files[f.file] = b"%s%s" % ( |
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115 b'.'.join([(b"%d" % x) for x in f.revision]), |
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116 [b'', b'(DEAD)'][f.dead], |
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117 ) |
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118 |
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119 # add current commit to set |
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120 c = commit( |
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121 author=cs.author, |
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122 date=date, |
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123 parents=[(b"%d" % p.id) for p in cs.parents], |
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124 desc=cs.comment, |
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125 branch=cs.branch or b'', |
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126 ) |
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127 self.changeset[id] = c |
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128 self.files[id] = files |
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129 |
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130 self.heads = self.lastbranch.values() |
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131 finally: |
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132 os.chdir(d) |
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133 |
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134 def _connect(self): |
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135 root = self.cvsroot |
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137 user, host = None, None |
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138 cmd = [b'cvs', b'server'] |
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139 |
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140 self.ui.status(_(b"connecting to %s\n") % root) |
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141 |
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142 if root.startswith(b":pserver:"): |
4047 | 143 root = root[9:] |
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144 m = re.match( |
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145 br'(?:(.*?)(?::(.*?))?@)?([^:/]*)(?::(\d*))?(.*)', root |
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146 ) |
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148 conntype = b"pserver" |
4047 | 149 user, passw, serv, port, root = m.groups() |
150 if not user: | |
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151 user = b"anonymous" |
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152 if not port: |
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153 port = 2401 |
4047 | 154 else: |
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155 port = int(port) |
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156 format0 = b":pserver:%s@%s:%s" % (user, serv, root) |
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157 format1 = b":pserver:%s@%s:%d%s" % (user, serv, port, root) |
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158 |
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160 passw = b"A" |
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161 cvspass = os.path.expanduser(b"~/.cvspass") |
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162 try: |
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163 pf = open(cvspass, b'rb') |
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164 for line in pf.read().splitlines(): |
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165 part1, part2 = line.split(b' ', 1) |
16683 | 166 # /1 :pserver:user@example.com:2401/cvsroot/foo |
167 # Ah<Z | |
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168 if part1 == b'/1': |
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169 part1, part2 = part2.split(b' ', 1) |
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170 format = format1 |
16683 | 171 # :pserver:user@example.com:/cvsroot/foo Ah<Z |
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172 else: |
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173 format = format0 |
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174 if part1 == format: |
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175 passw = part2 |
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176 break |
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177 pf.close() |
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178 except IOError as inst: |
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179 if inst.errno != errno.ENOENT: |
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180 if not getattr(inst, 'filename', None): |
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181 inst.filename = cvspass |
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182 raise |
4047 | 183 |
184 sck = socket.socket() | |
185 sck.connect((serv, port)) | |
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186 sck.send( |
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187 b"\n".join( |
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188 [ |
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189 b"BEGIN AUTH REQUEST", |
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190 root, |
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191 user, |
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192 passw, |
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193 b"END AUTH REQUEST", |
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194 b"", |
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195 ] |
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196 ) |
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197 ) |
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198 if sck.recv(128) != b"I LOVE YOU\n": |
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199 raise error.Abort(_(b"CVS pserver authentication failed")) |
4047 | 200 |
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201 self.writep = self.readp = sck.makefile('rwb') |
4047 | 202 |
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203 if not conntype and root.startswith(b":local:"): |
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204 conntype = b"local" |
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205 root = root[7:] |
4047 | 206 |
207 if not conntype: | |
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208 # :ext:user@host/home/user/path/to/cvsroot |
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209 if root.startswith(b":ext:"): |
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210 root = root[5:] |
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211 m = re.match(br'(?:([^@:/]+)@)?([^:/]+):?(.*)', root) |
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212 # Do not take Windows path "c:\foo\bar" for a connection strings |
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213 if os.path.isdir(root) or not m: |
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214 conntype = b"local" |
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215 else: |
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216 conntype = b"rsh" |
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217 user, host, root = m.group(1), m.group(2), m.group(3) |
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218 |
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219 if conntype != b"pserver": |
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220 if conntype == b"rsh": |
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221 rsh = encoding.environ.get(b"CVS_RSH") or b"ssh" |
4047 | 222 if user: |
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223 cmd = [rsh, b'-l', user, host] + cmd |
4047 | 224 else: |
225 cmd = [rsh, host] + cmd | |
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226 |
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227 # popen2 does not support argument lists under Windows |
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228 cmd = b' '.join(procutil.shellquote(arg) for arg in cmd) |
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229 self.writep, self.readp = procutil.popen2(cmd) |
4047 | 230 |
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231 self.realroot = root |
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232 |
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233 self.writep.write(b"Root %s\n" % root) |
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234 self.writep.write( |
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235 b"Valid-responses ok error Valid-requests Mode" |
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236 b" M Mbinary E Checked-in Created Updated" |
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237 b" Merged Removed\n" |
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238 ) |
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239 self.writep.write(b"valid-requests\n") |
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240 self.writep.flush() |
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241 r = self.readp.readline() |
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242 if not r.startswith(b"Valid-requests"): |
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243 raise error.Abort( |
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244 _( |
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245 b'unexpected response from CVS server ' |
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246 b'(expected "Valid-requests", but got %r)' |
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247 ) |
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248 % r |
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249 ) |
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250 if b"UseUnchanged" in r: |
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251 self.writep.write(b"UseUnchanged\n") |
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252 self.writep.flush() |
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253 self.readp.readline() |
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254 |
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255 def getheads(self): |
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256 self._parse() |
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257 return self.heads |
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258 |
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259 def getfile(self, name, rev): |
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260 def chunkedread(fp, count): |
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261 # file-objects returned by socket.makefile() do not handle |
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262 # large read() requests very well. |
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263 chunksize = 65536 |
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264 output = stringio() |
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265 while count > 0: |
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266 data = fp.read(min(count, chunksize)) |
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267 if not data: |
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268 raise error.Abort( |
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269 _(b"%d bytes missing from remote file") % count |
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270 ) |
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271 count -= len(data) |
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272 output.write(data) |
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273 return output.getvalue() |
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274 |
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275 self._parse() |
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276 if rev.endswith(b"(DEAD)"): |
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277 return None, None |
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278 |
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279 args = (b"-N -P -kk -r %s --" % rev).split() |
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280 args.append(self.cvsrepo + b'/' + name) |
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281 for x in args: |
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282 self.writep.write(b"Argument %s\n" % x) |
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283 self.writep.write(b"Directory .\n%s\nco\n" % self.realroot) |
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284 self.writep.flush() |
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285 |
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286 data = b"" |
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287 mode = None |
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288 while True: |
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289 line = self.readp.readline() |
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290 if line.startswith(b"Created ") or line.startswith(b"Updated "): |
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291 self.readp.readline() # path |
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292 self.readp.readline() # entries |
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293 mode = self.readp.readline()[:-1] |
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294 count = int(self.readp.readline()[:-1]) |
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295 data = chunkedread(self.readp, count) |
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296 elif line.startswith(b" "): |
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297 data += line[1:] |
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298 elif line.startswith(b"M "): |
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299 pass |
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300 elif line.startswith(b"Mbinary "): |
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301 count = int(self.readp.readline()[:-1]) |
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302 data = chunkedread(self.readp, count) |
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303 else: |
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304 if line == b"ok\n": |
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305 if mode is None: |
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306 raise error.Abort(_(b'malformed response from CVS')) |
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307 return (data, b"x" in mode and b"x" or b"") |
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308 elif line.startswith(b"E "): |
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309 self.ui.warn(_(b"cvs server: %s\n") % line[2:]) |
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310 elif line.startswith(b"Remove"): |
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311 self.readp.readline() |
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312 else: |
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313 raise error.Abort(_(b"unknown CVS response: %s") % line) |
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314 |
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315 def getchanges(self, rev, full): |
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316 if full: |
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317 raise error.Abort(_(b"convert from cvs does not support --full")) |
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318 self._parse() |
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319 return sorted(self.files[rev].items()), {}, set() |
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320 |
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321 def getcommit(self, rev): |
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322 self._parse() |
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323 return self.changeset[rev] |
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324 |
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325 def gettags(self): |
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326 self._parse() |
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327 return self.tags |
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328 |
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329 def getchangedfiles(self, rev, i): |
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330 self._parse() |
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331 return sorted(self.files[rev]) |